package com.example.event_resource_java.commons.util;

import org.apache.shiro.crypto.hash.SimpleHash;
import org.apache.shiro.util.ByteSource;

import java.security.MessageDigest;

/**
 * 加密工具类
 */
public class MD5Utils {
	//该成员变量请勿随意修改
	private static final String SALT = "jz";

	private static final String ALGORITH_NAME = "md5";

	private static final int HASH_ITERATIONS = 2;

	public static String encrypt(String pswd) {
		String newPassword = new SimpleHash(ALGORITH_NAME, pswd, ByteSource.Util.bytes(SALT), HASH_ITERATIONS).toHex();
		return newPassword;
	}

	public static String encrypt(String username, String pswd) {
		String newPassword = new SimpleHash(ALGORITH_NAME, pswd, ByteSource.Util.bytes(username + SALT),
				HASH_ITERATIONS).toHex();
		return newPassword;
	}
	public static void main11(String[] args) {
		
		System.out.println(MD5Utils.encrypt("admin", "1"));
		System.out.println(MD5Utils.encrypt("123456"));
	}
	public static String convertMD5(String inStr) {

		char[] a = inStr.toCharArray();
		for (int i = 0; i < a.length; i++) {
			a[i] = (char) (a[i] ^ 't');
		}
		String s = new String(a);
		return s;

	}
	public static String md5Decode(String str) {
		return convertMD5(convertMD5(str));
	}
	/**
	 * Title: MD5加密
	 * Description: TestDemo
	 * @author lu
	 * @date 2016年6月23日 下午2:43:31
	 * @param inStr
	 * @return
	 */
	public static String string2MD5(String inStr) {
		MessageDigest md5 = null;
		try {
			md5 = MessageDigest.getInstance("MD5");
		} catch (Exception e) {
			System.out.println(e.toString());
			e.printStackTrace();
			return "";
		}
		char[] charArray = inStr.toCharArray();
		byte[] byteArray = new byte[charArray.length];

		for (int i = 0; i < charArray.length; i++)
			byteArray[i] = (byte) charArray[i];
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		for (int i = 0; i < md5Bytes.length; i++) {
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16)
				hexValue.append("0");
			hexValue.append(Integer.toHexString(val));
		}
		return hexValue.toString();

	}
	public static void main(String[] args) {
		String s = new String("12345612");
		System.out.println(md5Decode("a6aeb3ffa55fc7d664406af9c3bd0f1b"));
		System.out.println("原始：" + s);
		System.out.println("MD5后：" + string2MD5(s));
		System.out.println("加密的：" + convertMD5(s));
		System.out.println("解密的：" + convertMD5(convertMD5(s)));
	}
}
